/**
 * GreenFolio Website Styles
 * Premium dark theme with cyan accents
 */

/* ================================
   CSS Variables & Reset
   ================================ */
:root {
    /* Colors */
    --color-background: #000000;
    --color-surface: #0a0a0a;
    --color-surface-light: #151515;
    --color-surface-elevated: #1a1a1a;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-light: rgba(255, 255, 255, 0.12);
    
    --color-text: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-text-muted: rgba(255, 255, 255, 0.4);
    
    --color-cyan: #00f0ff;
    --color-cyan-dim: rgba(0, 240, 255, 0.1);
    --color-magenta: #ff00ff;
    --color-green: #00ff88;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* Sizing */
    --max-width: 1200px;
    --nav-height: 72px;
    
    /* Shadows */
    --shadow-glow: 0 0 40px rgba(0, 240, 255, 0.15);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* ================================
   Navigation
   ================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: var(--max-width);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    background: linear-gradient(135deg, var(--color-cyan), var(--color-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: var(--spacing-xl);
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-cyan);
}

/* ================================
   Hero Section
   ================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--nav-height) + var(--spacing-3xl)) var(--spacing-lg) var(--spacing-3xl);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    max-width: 600px;
    text-align: center;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-cyan-dim);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-cyan);
    margin-bottom: var(--spacing-lg);
}

.badge-icon {
    font-size: 1rem;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-cyan), var(--color-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 12px;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--color-cyan);
    color: var(--color-background);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: var(--color-surface-elevated);
    color: var(--color-text);
    border: 1px solid var(--color-border-light);
}

.btn-secondary:hover {
    background: var(--color-surface-light);
    border-color: var(--color-cyan);
}

/* Phone Mockup */
.hero-visual {
    display: none;
}

@media (min-width: 1024px) {
    .hero {
        flex-direction: row;
        gap: var(--spacing-3xl);
    }
    
    .hero-content {
        text-align: left;
    }
    
    .hero-cta {
        justify-content: flex-start;
    }
    
    .hero-visual {
        display: block;
    }
}

.phone-mockup {
    width: 280px;
    height: 580px;
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 
        0 0 0 1px rgba(255, 255, 255, 0.1),
        var(--shadow-card),
        0 0 80px rgba(0, 240, 255, 0.1);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--color-background);
    border-radius: 30px;
    overflow: hidden;
}

.app-preview {
    padding: var(--spacing-lg);
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.preview-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.preview-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-cyan);
}

.preview-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.preview-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-surface-elevated);
    border-radius: 16px;
    border: 1px solid var(--color-border);
}

.card-image {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, #1a3a2a, #0a2a1a);
}

.plant-1 { background: linear-gradient(135deg, #2d5a3d, #1a3a2a); }
.plant-2 { background: linear-gradient(135deg, #5a2d4a, #3a1a2a); }
.plant-3 { background: linear-gradient(135deg, #3d5a2d, #2a3a1a); }

.card-name {
    flex: 1;
    font-size: 0.875rem;
    font-weight: 500;
}

.card-price {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-green);
}

/* ================================
   Features Section
   ================================ */
.features {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--color-surface);
}

.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-cyan-dim);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-cyan);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    padding: var(--spacing-xl);
    background: var(--color-surface-light);
    border-radius: 20px;
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
}

.feature-card:hover {
    border-color: rgba(0, 240, 255, 0.3);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* ================================
   Download Section
   ================================ */
.download {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: linear-gradient(180deg, var(--color-background), var(--color-surface));
}

.download-content {
    text-align: center;
}

.store-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
}

.store-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border-light);
    border-radius: 14px;
    transition: all var(--transition-normal);
}

.store-button:hover {
    border-color: var(--color-cyan);
    transform: translateY(-2px);
}

.store-button svg {
    flex-shrink: 0;
}

.store-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.store-label {
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

.store-name {
    font-size: 1rem;
    font-weight: 600;
}

/* ================================
   Footer
   ================================ */
.footer {
    padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-lg);
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-2xl);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-tagline {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: var(--spacing-3xl);
}

.footer-column h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.footer-column a {
    display: block;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-cyan);
}

.footer-bottom {
    max-width: var(--max-width);
    margin: var(--spacing-2xl) auto 0;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* ================================
   Legal Pages
   ================================ */
.legal-page {
    padding: calc(var(--nav-height) + var(--spacing-3xl)) var(--spacing-lg) var(--spacing-3xl);
    background: var(--color-background);
    min-height: 100vh;
}

.legal-container {
    max-width: 800px;
    margin: 0 auto;
}

.legal-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.legal-header h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-text), var(--color-text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.legal-date {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.legal-content {
    line-height: 1.8;
}

.legal-section {
    margin-bottom: var(--spacing-2xl);
}

.legal-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-cyan);
    display: inline-block;
}

.legal-section h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-cyan);
}

.legal-section p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.legal-section ul {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.legal-section li {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    position: relative;
    padding-left: var(--spacing-md);
}

.legal-section li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-cyan);
}

.legal-section a {
    color: var(--color-cyan);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.legal-section a:hover {
    text-decoration: none;
}

.legal-section strong {
    color: var(--color-text);
    font-weight: 600;
}

/* ================================
   Responsive Adjustments
   ================================ */
@media (max-width: 768px) {
    .nav-links {
        gap: var(--spacing-md);
    }
    
    .nav-links a {
        font-size: 0.85rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .footer-container {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-xl);
    }
    
    .store-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .store-button {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .hero {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    .legal-page {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
}